Envelope



B. A. LARSEN.

- ENVELOPE.

APPLICATION FILED MAY 3, 191a.

Patented July 25, 1922.

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Application filed May 3, 1918.

To all whom it may concern:

Be it known that I, BERDIE A. LARSEN, a

citizen of the United States residin at use the same,

This invention relates to envelopes and the primary object of the invention is to provide an improved envelope, which is so formed that unauthorized. attempts to open the same is made impossible, without multilating the envelope and sealing means thereby calling attention to the fact that the envelope has been tampered with.

Another object of the invention is to provide an improved envelopehaving the sealing flap thereof positioned on the front face of the envelope adjacent to the side walls thereof, so that the stamp will lie across the sealing flap and front face of the envelope and thereby rendering the opening of the sealing flap impossible without tearing the same.

A further object of the invention is to provide an improved envelope of which the sealing flap is so formed, that the same can be readily opened, without tearing the contents of the envelope.

A.v further object of the invention is to provide a safety envelope which is so formed as to contain a pair of compartments, so that two separate communications can be placed therein.

A. still further object of'the invention is to provide an improved envelope of the above character, which is durable and ellicient in use, one that is simple and easy to manufacture, and one that can be placed upon the market at a reasonable cost.

With these and other objects in view the invention consists in the novel construction, arrangement and formation of parts, as will be hereinafter more specifically described, claimed and illustrated in the accompanying drawing, forming a part thereof in which:

Figure 1 is a view of the improved envelope blank,

Figure 2 is a plan View of the envelope, showing the same properly folded,

Figure 3 is a side elevation of the en- Specification of Letters Patent.

Patented July 25, 1922.

Serial No. 232,332.

velope showing the sealing flap prior to being sealed,

Figure 4 is a side elevation of the envelope showing the sealing flap in its sealed position, and

Figure 5 is a longitudinal section taken on the line 55 of Figure 3.

Referring to the drawing in detail, wherein similar reference numerals designate corresponding parts throughout the several views, the numeral 1 generally indicates the improved'envelope, which includes a front wall 2 having the outer wings 3 formed on the longitudinal edges thereof, one of the same having'an adhesive 4-. The wings 3 are arranged to fold on the lines 5 defined by the longitudinal edges overthe front wall and the same are of su'liicientwidth, so as to overlap each other, as is clearly shown in Figure 2. The adhesive l holds the flaps in folded position. A rear wall or flap 6 is formed on one end of the front wall and is identically the same as the front wall and is arranged to be folded on the line 7 back upon the side wings 3 and longitudinal edges of the rear wall is provided with an adhesive 8, which is adapted to hold the rear wall in folded position. A sealing or closure flap 9 is formed on the free end of the rear wall 6 and the same is provided with inwardly extending V-shaped notches at the side edges, as at 10. The notches 10 are spaced from the free end of the tongue and the flap 9 is adapted to be folded on lines 11 formed by one-end of the rear wall 6, and a line connecting the points of the V-shaped notches and a line connecting the ends of the notches 10. The portion 12 of the sealing flap lying between the free end thereof and the line connecting the ends of the notches forms a sealing flap proper and is provided with a suitable adhesive 13, which is adapted to hold the same in position as shown in Figure 4.

The sealing flap 9 is folded on the lines 11 and the same arranged to be positionedin the body of the envelope between the front wall 2 and the side walls 3. The envelope is then ready to receive the communication which may be desired to be placed in the envelope and the portion 12 is then held in position as shown in Figure 4:. A stamp 14: is put across the meeting sections of the portion 12 and the front face 2, and thus it will be seen that to open the envelope it is necessary to tear the stamp 1a, which will immediately show that the envelope has been tampered with.

The formation of the sealing flap 9 is such, that the same will permit the envelope to be readily opened, when it is desired to remove the contents therefrom and this flap permits the envelope to be opened without tearing the contents of the envelope. When desiring to open the envelope, the flap 9 is torn along the line 11 and thus obviating the tearing of the envelopes end off, as is the usual custom. The pocket formed in the folding of the sealing flap 9 permits the finger to be inserted therein, so as to readily tear the envelope along this line, however a suitable sharp instrument may be inserted therein to cut the flap along this line if so desired.

The formation of the envelope also forms two separate compartments which can be used if so desired to carry two distinct communications. One of these compartments 15 is formed between the front wall 2, the side wings 3 and the compartment 16 is formed between the side wings 3 and the rear wall 6.

In practice, I have found that the form of my invention, illustrated in the accompanying drawings and referred to in the above description, as the preferred embodiments, is the most efiicient and practical; yet realizing the conditions concurrent with the adoption of my device will necessarily vary, I desire to emphasize the fact that various minor changes in details of construction, proportion and arrangement of parts may be resorted to, when required, without sacrificing any of the advantages of my invention as set forth.

What I claim as new is:

An envelope formed from a blank and having a front wall, laterally extending wing means on said front wall foldable thereover to provide a compartment, a rear wall substantially similar to said front wall ex tending therefrom at substantially a right angle to said wing means and foldable over and against said wing means, a closure flap extending from the rear wall folded into a loop, said loop being insertible into one end of the envelope intermediate said front wall and said wing means, whereby a pocket is afforded exteriorly of said compartment adapted to be torn along the fold line between said loop and the rear wall during opening thereof without danger of tearing the contents of said compartment.

In testimony whereof I ailix my signature in presence of two witnesses.

BERDIE A. LARSEN.

Witnesses EDGAR T. LARSEN, ARTHUR P. ABBOTT. 

